IEC/IEEE 62704-2:20 17建立了有限差分时域技术（FDTD）的概念、技术、验证程序、不确定性和局限性，当用于确定暴露于频率范围为30 MHz至1 GHz的车载天线发射的电磁场的标准化人体解剖模型中的峰值空间平均和全身平均比吸收率（SAR）时，该模型涵盖了典型的高功率移动无线电产品和应用。本文件规定并提供了测试车辆、人体模型以及这些模型的一般基准数据。它定义了天线位置、操作配置、暴露条件以及暴露于车载天线产生的场的人员的典型位置。本文件的未来修订版将考虑扩展至6 GHz的频率范围。本文件不推荐特定的峰值空间平均和全身平均SAR限值，因为这些限值见于其他文件，例如IEEE C95.1-2005，ICNIRP(1998)。 关键词:电磁场、时域有限差分(FDTD)、空间平均比吸收率(SAR)、车载天线

IEC/IEEE 62704-2:2017 establishes the concepts, techniques, validation procedures, uncertainties and limitations of the finite difference time domain technique (FDTD) when used for determining the peak spatial-average and whole-body average specific absorption rate (SAR) in a standardized human anatomical model exposed to the electromagnetic field emitted by vehicle mounted antennas in the frequency range from 30 MHz to 1 GHz, which covers typical high power mobile radio products and applications. This document specifies and provides the test vehicle, human body models and the general benchmark data for those models. It defines antenna locations, operating configurations, exposure conditions, and positions that are typical of persons exposed to the fields generated by vehicle mounted antennas. The extended frequency range up to 6 GHz will be considered in future revisions of this document. This document does not recommend specific peak spatial-average and whole-body average SAR limits since these are found in other documents, e.g. IEEE C95.1-2005, ICNIRP (1998).
Key words: Electromagnetic Field, Finite-Difference Time Domain (FDTD), Spatial-Average Specific Absorption Rate (SAR), vehicle mounted antennas